Vietnam Population 83,305,000 Capital Hanoi; 3,977,000 Area 331,114 square kilometers (127,844 square miles) Language Vietnamese, English, French, Chinese, Khmer, local languages Religion Buddhist, Hoa Hao, Cao Dai, Christian, indigenous beliefs, Muslim Currency dong Life Expectancy 72 GDP per Capita U.S. $2,300 Literacy Percent 94